| AWAlan Wire CO | Sikeston | MO | Primary Metal Manufacturing331420 | 100-499 | ◐ LIKELY ACTIVE |
| BMBull Moose Tube | Gerald | MO | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| CBClay & Bailey Mfg Company | Kansas City | MO | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| GEGateway Extrusions | Union | MO | Primary Metal Manufacturing331316 | 100-499 | ◐ LIKELY ACTIVE |
| KPKeokuk Prototype Foundry Company, INC. | Kahoka | MO | Primary Metal Manufacturing331513 | 20-99 | ◐ LIKELY ACTIVE |
| LCLakeside Casting Solutions | Monroe City | MO | Primary Metal Manufacturing331523 | 20-99 | ◐ LIKELY ACTIVE |
| M7Magnitude 7 Metals LLC | Marston | MO | Primary Metal Manufacturing331312 | 100-499 | ◐ LIKELY ACTIVE |
| MMMonett Metals INC | Monett | MO | Primary Metal Manufacturing331513 | 20-99 | ◐ LIKELY ACTIVE |
| MIMost INC | Troy | MO | Primary Metal Manufacturing331314 | 20-99 | ◐ LIKELY ACTIVE |
| OFO'hare Foundry Corporation | Maplewood | MO | Primary Metal Manufacturing331523 | 20-99 | ◐ LIKELY ACTIVE |
| PAPermalok - a Northwest Pipe CO | St Louis | MO | Primary Metal Manufacturing331210 | 1-19 | ◐ LIKELY ACTIVE |
| RSRmf Steel Products | Grandview | MO | Primary Metal Manufacturing331513 | 20-99 | ◐ LIKELY ACTIVE |
| RARti Advanced Forming INC | Washington | MO | Primary Metal Manufacturing331221 | 20-99 | ◐ LIKELY ACTIVE |
| SLSpartan Light Metal Products, L.l.c. | Mexico | MO | Primary Metal Manufacturing331523 | 100-499 | ◐ LIKELY ACTIVE |
| SSStahl Specialty Company | Kingsville | MO | Primary Metal Manufacturing331521 | 100-499 | ◐ LIKELY ACTIVE |
| TMToyota Motor Mfg Missouri INC | Troy | MO | Primary Metal Manufacturing331316 | 500+ | ◐ LIKELY ACTIVE |
| TPTrinity Products, LLC | O'fallon | MO | Primary Metal Manufacturing331110 | 100-499 | ◐ LIKELY ACTIVE |
| WWWireco World Group Sedalia | Sedalia | MO | Primary Metal Manufacturing331222 | 100-499 | ◐ LIKELY ACTIVE |
| CCConnector Castings | St. Louis | MO | Primary Metal Manufacturing331522 | 20-99 | ◐ LIKELY ACTIVE |
| CDControl Devices | Fenton | MO | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| EAEngraphix Architectural Signage | St Louis | MO | Primary Metal Manufacturing331492 | 20-99 | ◐ LIKELY ACTIVE |
| LNLenco, Nlc INC. | Jackson | MO | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| MFMartin Foundry CO | Kansas City | MO | Primary Metal Manufacturing331524 | 1-19 | ◐ LIKELY ACTIVE |
| MIMp Industries, INC. | O'fallon | MO | Primary Metal Manufacturing331511 | 20-99 | ◐ LIKELY ACTIVE |
| SLSaint Louis Precision Casting Company | Saint Louis | MO | Primary Metal Manufacturing331511 | 1-19 | ◐ LIKELY ACTIVE |
| AMAlubar Metals Missouri LLC | Marston | MO | Primary Metal Manufacturing331313 | 100-499 | ◐ LIKELY ACTIVE |
| AFAluminum Finishers LLC Granby | Granby | MO | Primary Metal Manufacturing331521 | — | ◐ LIKELY ACTIVE |
| BDBohn & Dawson, Inc. | St. Louis | MO | Primary Metal Manufacturing331210 | 100-499 | ◐ LIKELY ACTIVE |
| CCCerro Copper Casting | Mexico | MO | Primary Metal Manufacturing331525 | — | ◐ LIKELY ACTIVE |
| DIDelong's Incorporated | Sedalia | MO | Primary Metal Manufacturing331210 | — | ◐ LIKELY ACTIVE |
| DRDoe Run Company-buick Mine & Mill | Boss | MO | Primary Metal Manufacturing331492 | — | ◐ LIKELY ACTIVE |
| ECEfco Corporation | Monett | MO | Primary Metal Manufacturing331318 | — | ◐ LIKELY ACTIVE |
| IWInsteel Wire Products | Saint Joseph | MO | Primary Metal Manufacturing331222 | 20-99 | ◐ LIKELY ACTIVE |
| KMKoken Manufacturing CO INC | Saint Louis | MO | Primary Metal Manufacturing331314 | 20-99 | ◐ LIKELY ACTIVE |
Leggett & Platt-wire Mill - Carthage Central Ave | Carthage | MO | Primary Metal Manufacturing331222 | — | ◐ LIKELY ACTIVE |
| NWNucor Wire Products Missouri | Maryville | MO | Primary Metal Manufacturing331221 | — | ◐ LIKELY ACTIVE |
Pittsburgh Pipe & Supply CORP. | Saint Louis | MO | Primary Metal Manufacturing331210 | 20-99 | ◐ LIKELY ACTIVE |
| SMSchuylkill Metals Division of Exide CORP | Forest City | MO | Primary Metal Manufacturing331314 | — | ◐ LIKELY ACTIVE |
| SKStryten Kcmo LLC | Kansas City | MO | Primary Metal Manufacturing331491 | — | ◐ LIKELY ACTIVE |
| TDThe Doe Run Company Buick Resource Recycling Facility | Boss | MO | Primary Metal Manufacturing331410 | — | ◐ LIKELY ACTIVE |
| WTWieland Thermal Solutions | Cuba | MO | Primary Metal Manufacturing331420 | 20-99 | ◐ LIKELY ACTIVE |
| ATAero Transportation Products INC Independence Plant | Independence | MO | Primary Metal Manufacturing331316 | — | ◐ LIKELY ACTIVE |
| CFCerro Flow Products LLC Shelbina | Shelbina | MO | Primary Metal Manufacturing331420 | — | ◐ LIKELY ACTIVE |
| CGCtb Grain Systems-ctb Grain Systems | Kansas City | MO | Primary Metal Manufacturing331221 | — | ◐ LIKELY ACTIVE |
| CPCupples Prods INC | Union | MO | Primary Metal Manufacturing331318 | — | ◐ LIKELY ACTIVE |
| DODawkins On-site, LLC - Missouri Portable Nucor | Sedalia | MO | Primary Metal Manufacturing331110 | — | ◐ LIKELY ACTIVE |
| HMHitchiner Manufacturing Company | Ofallon | MO | Primary Metal Manufacturing331522 | — | ◐ LIKELY ACTIVE |
| HAHydro Aluminum North America INC | Monett | MO | Primary Metal Manufacturing331314 | — | ◐ LIKELY ACTIVE |
| PCPrysmian Cables and Systems Usa, LLC | Sedalia | MO | Primary Metal Manufacturing331313 | — | ◐ LIKELY ACTIVE |
| SSStahl Specialty Company - Kingsville | Kingsville | MO | Primary Metal Manufacturing331521 | — | ◐ LIKELY ACTIVE |